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dc.contributor.authorJiménez Divins, Nuria
dc.contributor.authorLópez, E.
dc.contributor.authorLlorca Piqué, Jordi
dc.contributor.authorVega, Didac
dc.contributor.authorRodríguez, A.
dc.contributor.authorGonzàlez de Rivera, Ferran
dc.contributor.authorAngurell Purroy, Inmaculada
dc.contributor.authorSeco García, Miquel Angel
dc.contributor.authorRossell Alfonso, Josep Oriol
dc.contributor.otherUniversitat Politècnica de Catalunya. Institut de Tècniques Energètiques
dc.identifier.citationJ. Divins, N. [et al.]. Macroporous silicon microreactor for the preferential oxidation of CO. "IEEE Electron Devices (CDE)", 2013, p. 139-142.
dc.description.abstractA macroporous silicon micromonolith containing ca. 40,000 regular channels of 3.3 ¿m in diameter per square millimeter has been successfully functionalized with an Au/TiO2 catalyst for CO preferential oxidation (CO-PrOx) in the presence of hydrogen. The functionalization of the silicon microchannels has been accomplished by growing a SiO2 layer on the channel walls, followed by exchange with a titanium alkoxyde precursor and decomposition into TiO2 and, finally, by anchoring carbosilanethiol dendron protected pre-formed Au nanoparticles. Catalytically active centers at the Au-TiO2 interface have been obtained by thermal activation. With this method, an excellent homogeneity and adherence of the catalytic layer over the microchannels of the macroporous silicon micromonolith has been obtained, which has been tested for CO-PrOx at 363-433 K and ¿=2 under H2/CO=0-20 (molar). The macroporous silicon micromonolith converts ca. 3 NmL of CO per minute and mL of microreactor at 433 K under H2/CO=20, suggesting that it could be particularly effective for hydrogen purification in lowtemperature microfuel cells for portable applications.
dc.format.extent4 p.
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.subjectÀrees temàtiques de la UPC::Enginyeria química::Química inorgànica::Compostos inorgànics
dc.subjectÀrees temàtiques de la UPC::Energies
dc.subject.lcshInorganic compounds
dc.titleMacroporous silicon microreactor for the preferential oxidation of CO
dc.subject.lemacCompostos inorgànics
dc.contributor.groupUniversitat Politècnica de Catalunya. GREENER - Grup de recerca d'estudis energètics i de les radiacions
dc.rights.accessRestricted access - publisher's policy
dc.description.versionPostprint (published version)
local.citation.authorJ. Divins, N.; López, E.; Llorca, J.; Vega, D.; Rodríguez, A.; González de Rivera, F.; Angurell, I.; Seco, M.; Rossell, O.
local.citation.publicationNameIEEE Electron Devices (CDE)

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